First of all, the requirements of each customer are different. If we want to get you the necessary bolts, we must adjust the machine. The teacher spent a lot of time to help you adjust and check the machine, so as to ensure that your goods are delivered to you on time, according to the quality and quantity. Secondly, even if a bolt is as big as a white sesame, we have to order the raw materials, and some materials even have certain starting batch regulations, Double drum rivet customization is an unavoidable total cost; what's more, there are not necessarily bolts. We all have existing Abrasives here. Although we are all the root manufacturers, the abrasives are not cheap enough that we can make enough stock of abrasives of each model and specification, and the cost of a simple grinding tool can not be reduced by 100 yuan. If the customer does not With everyone's burden, it is estimated that we will lose to close down! In addition to the cost of packaging, freight logistics and other aspects, I believe that all companies can not afford it. Therefore, we deduct the cost of sample making. The special rivets are not really to better earn the cost of samples. We are willing to achieve long-term cooperative relationship with all real and willing customers just to better prevent risks!